[Beowulf] raw ethernet

Gerry Creager N5JXS gerry.creager at tamu.edu
Thu Jul 22 08:37:45 EDT 2004


It's too easy...

Transition to IPv6 and encode 'node{nnnnnn}' into the address in place 
of EUI64 MAC encoding...  :-)

gerry

Daniel Ridge wrote:
> Greetings,
> 
> On Jul 21, 2004, at 9:14 AM, Robert G. Brown wrote:
> 
>>  leeching off of arp
>> tables somehow to achieve a semi-portable mapping between hostname and
>> ethernet number on the flat network.
> 
> 
> It's easy to take hardware too seriously. If you are building a cluster 
> with
> a private network, you don't need to worry about IANA and what they think
> your Ethernet MAC addresses should be. Just staple your node number into
> your hardware address* and be done with it. Essentially all network 
> adapters
> provide some way to load a user-supplied MAC address into the card and
> nearly all linux network device drivers expose this facility.
> 
> * and make sure that the resulting ethernet address is a legit unicast 
> address
> 
> Regards,
>     Dan Ridge
> 
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-- 
Gerry Creager -- gerry.creager at tamu.edu
Network Engineering -- AATLT, Texas A&M University	
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
Page: 979.228.0173
Office: 903A Eller Bldg, TAMU, College Station, TX 77843

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